Improved double-seaming machine



UNITED STATES PATENT ,-OFrrcn. l

L. T. HULBERL 0F PAINESVILLE, OHIO.

vIM Pnovl-:ol non BLE- 'SEAMING MyAcHlNE.

Specilcntien forming part of Letters PntentrNo.26.l679, dated January 3,1860. Y

To all whom it' may concern: Be it known that I, L. T. HULBERT, oPainesville, in the county of Lake'aud State of Ohio, have inventedcertain new and useful Improvements in Double-Seam'ing Machines; and Ido hereby declare that the following'isa full and exact descriptionthereof, reference being had to the annexed drawings,in which- Figure 1isa view, n perspective, f the whole machine; Fig. 2, a side elevationof the same; 'Fig'. 3, alongitudinal section of the part which carriesthe rotating head; Figs. 4 and 5, perspective views of theshaft-supportand frame; Fig. 6, sectional view of a former and a rotatingV head whoseedges, Snc., are` constructed to adapt them to seaming articles havingconvex and. flaring or 'tapering faces; and

Fig. 7, diagram `showing the application -of my improved linearrangement of the rotatingl head and former for the purpose. ofdoubleseaining work that combines-straight with curved seams.

' The letters of reference marked thereon inA l dicate similar parts in4all the drawings.

The nature of my improvements consist in the following particulars:

First. ...Placing the` shaft which carriesthe rotating head in 'asupport, which support is peculiarly hinged to a frame placed on the topofastandard, and so controlled Vby an eccen tr-icI trip and springaswill give the said support 7 a downward and at the same time forwardmovement when acted on by apressure-l screw, and also the reverse or anupward vand receding movement on releasing the said pressureaserew. e el Second. The employment of a-standard carrying a mandrel and former,which' is adjustable -horizontallyand secured immovable in the desiredlocation, and used in combination with the rotating head actuated by thepecu. liar movement, as above explained,by which I am enabled to securea very important feature not hitherto embodied in doub1e-seam ...ingmachnes-that of closing the seam eiiect- 'standard which supports themandrel ,and former, as before mentioned, and to the cen-V l ters ofsaid former and rotating head being in direct line, as will beexplained, so that the seam cannot be otherwise ,y than l'properlyclosed. there beingno giveway-between them beyond the usual spring oftheparts.`

screw, by which arrangement I secure two obf jects-first, the adjustmentof the centers of therotatinghead and former, the coincidence of whichin direct line with each other,` as bef fore mentioned, is 'essential tothe perfect closing of the seam, and to prevent lateral or eccentricdraft; and', secondadjustng the ele-v vation of the rotating headto`correspond with the height of any length mandrel that'may be requiredfor seaming deep articles, `such as stove-boilers, &c.`

Fourth. The employment of uaformerhaving a convex' border or rim andtapering edge,

in combination with a rotating head with edges constructed asl will beshown, by which I am enabled to double-seamartieles'having combinedconvex andv tapering surfaces.-

Fifth-. By means ofthe-above-described 1i-z` rect-linearrangement ofthehead and former,

the seams of such articles as have straight and round `formscombined-such as the sides and ends o f sto ve-boilerseand the seams ofarticles 'of an: oval shape can be closedxby-the same l head and formerat once, thusV obviating the necessity of taking` the work offthemachine, e'

to be finished sea-ming `byhand.

To enable -others skilled in th fart to malte and se 4mymidi/improvements, I will proceed to describe the construction,arrangement, and operatio'nof the partsconstituting y them. l

A,Fig. 1,is the base 4ofthe machine; B, a standard. Said standard is`cast hollow `and, forms with the said base one piece or casting.

C is a frame, and D, Fig. 4, its shank.

n F is a shaft-support, the particular forms of l which, together withthat of theframe, are delineated in Figs. 4 and 5..

e is a shaft, which is passed throughbearf ings H H, Fig. 5. To onelendof said shaft is attached a rotating head, I, to the other end ahand-crank, J. 'The said shaftsupport is Third. Providing the framewhich supports the mechanism' of the rotating `head with a` `lengthenedshank, which" nis into asocket of the standard, and secured in positionby a setf secured te: said frenchy hingi'n-gjtlpheret: l It' willbeobserved that the pin-hole K, Fig. 5,

is somewhat elongated, for the purpose herein after explained.-

L, Fig. 2,is an eceentri'c`trip,'and M aspring.,

Both are secured inv the lowerjpart of the frame C; The rounded end ofsaidtrip ts into a' groove, N, Fig. 5, of sai-d ,shat-supp'ort, thepartof 'said' frame is provided witha screwhole,l O, Fig. 4,.Which-,receives aepressuref Q is a set-sereni, inserted through theupper part of standard B. A.

R is, a movable standard, which is .secured tothe base A through a 'slot, yS, Fig. 1, by a screw-bolt, T, Fig.1. The upper part o f saidstandard is provided with a box, U, and the lower'part with a step, V,through said box, and resting in said step is fa i mandrel,'W, on

whichv is placed a former, -X, 'which is to irot-ate in eoncert'with thehead I.

A,Fig.1 6,isa formerconstructcdas follows:

B"is 'afbeveled orV daring edge, and C a borderor,..ri`m, convex inform. D.' isa rotary -headhavi'ngtwo faces, E and F'on its. edge,

fas-seen in the drawings.

yFor'mers of various sizes with 'suitable edges -for square or taperseams, together withi rotary'heads to correspond, are constructed to,accompany each machine. 'f

e The ,operation is as lf ollovrsr""Cllheproper Yformer and rotary headbeing secured on the .mandrel and shaft, andtheir centers brought in.directlne by moving the frame C librizontallyand securing it'by theset-screw,` the standard R then adjustedv by means of the slot and bolt,so'thatthe edgesof 4theformer and head icome together 'suicientlytoadmit between them thearticle tobeseamed. The

said' vrotating head is then brought down on" the seamby turningthepressure-screw'. I

would here remark thattheturning of Ithe pressure-screw, in connection'with the fpecu- I iar'hinged attaohm'entofthe shaftsupport to the frame,and the elongated hole and eccen trictrip and spring", brings.therotating .head on Athe.-seam downward and forward simnlta.mioul-s1'5'f,v closing the seam1`at once and previusV to the movement'ofthe yc rarilolIandle,

the vmotionfof lwhich merely draws' thewo'rk around until theseaming isf compl'eted. The work isthen takenofby ai'reyerse move;y

. 1 l l s.

men'tf' the pressure-Screw.

.eccentric draft, andro insure theperfect worki' I-t isnecessary'inorder to avoid'lateral or ing of the `part-s, that'thecenters of the rotar `ing head and former should coincide in a directline with each other.

When it is required to operate on the seams of deep work, such asstove-boilers, amandrel' ofsuficient length is ius'ertedin the standardand the rotating head 'elevated corre-l SPQndingly SDFlDg restingonits'other end. "The upper For closing the seams of articles havingconvex and vtapering surfaces, such'as shown in Fig. 6, in which isrepresented in section the, common hand wash-basin, the former and*lhead, constructed 'as delineated, areto be' -used. A

- The diagram, Fig. i', explains the utilityof my direct-1ine-"arrangement in' reference to Seaming articles havingseams running in acombined circular and straight direction. as well as otherseams',1asexplained.. The dottedline a b lis the'direct line referred to'. The"other dottedlines represent the bottom of a" stoveboilerand its changeof positionA lwhile l Having explained the nature, construction, andoperation'of my saidfimprovements, I wish tobeunderstood as not claiminga'ro- 'ltary heador a former,either.'separately for combined, suchhaving been long in' use,.but only in respect to their employment whenarranged, operated, and constructed .a's stated, especially in referenceto. their connection With-anin inlovable standardV -and the directlinearrangement, ,as described.

I therefore claim vand desire to secure by Letters Patent- 1..Therotating head, operated inthe 'ma-n- 'ner and by lthe meansdescribed,soas to prol duce a lateral pressure onthe seam, in comf'binatioii withthe mode 4of adjusting the di` rect-'line arrangement, herein .referredto, byl

i means of lthe. shank, sockf'at,y and set-screw, as

described, together withthe adjustable standi lardR, substantially asspecified and for the 4 .purposes set forth.' The former A with itsraised or convex Aborder Gf and tapering edge B', in combinationw'iththe rotary head D', having its edge constructed, as shown, to loe-usedin conjuno' tion with the arrangement in my first claim, -for :thepurpose of double-seamjng raised or convenwork, yas described andvshownii 'l-xjHULBERT,

.l q1, J. F.;S INGLE,

Henson STEELE. j

